Aparticle of charge q is fixed at the origin of an xy coordinate system. at t = 0 a particle (m = 0.959 g, q = 5.84 µc is located on the x axis at x = 20.7 cm, moving with a speed of 47.9 m/s in the positive ydirection. for what value of q will the moving particle execute circular motion? (neglect the gravitational force on the particle.)

or .

Explanation:

Given:

For the moving particle to circular motion, the electrostatic force between the two must be balanced by the centripetal force on the moving particle.

The electrostatic force on the moving particle due to the charge Q at origin is given by Coulomb's law as:

where, is the Coulomb's constant having value

The centripetal force on the moving particle due to particle at origin is given as:

For the two forces to be balanced,

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

i think the answer is a and b

i wish you luck